JUST FIX MY DEBIT ORDER

How do I pay my account when they don't want to assist.? I have spoken to so many people to get them to load the debit order on my new account and was told that it was done and I should not worry, however it was not done and my debit order went off the incorrect acc. I paid that amount via EFT as I insisted that I will not hang up the phone unless someone gives me details to pay the money to. I sent proof of payment and asked for an acknowledgement and absolutely no response from no one. I don't know if my payment was allocated to my account and still the debit order is not fixed after I was told it will be fixed in 48 hours. I am not asking for miracles just fix the debit order and allocate my payment that I did via EFT.